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'''Memory-disk synchronisation'''<ref>{{cite journal |last1=Chen |first1=Congcong |last2=Cui |first2=Jinhua |last3=Qu |first3=Gang |last4=Zhang |first4=Jiliang |title=Write+Sync: Software Cache Write Covert Channels Exploiting Memory-Disk Synchronization |journal=IEEE Transactions on Information Forensics and Security |pages=8066–8078 |doi=10.1109/TIFS.2024.3414255 |date=2024 |volume=19 |bibcode=2024ITIF...19.8066C }}</ref><ref>{{cite arXiv |last1=Chen |first1=Congcong |last2=Cui |first2=Jinhua |last3=Qu |first3=Gang |last4=Zhang |first4=Jiliang |title=Write+Sync: Software Cache Write Covert Channels Exploiting Memory-disk Synchronization |date=2023 |class=cs.CR |eprint=2312.11501 }}</ref> is a process used in [[computer]]s that immediately writes to [[disk storage|disk]] any data queued for writing in volatile memory. Data is often held in this way for efficiency's sake, since writing to disk is a much slower process than writing to [[random access memory|RAM]]. Disk synchronization is needed when the computer is going to be shut down, or occasionally if a particularly important bit of data has just been written.▼
▲'''Memory-disk synchronisation''' is a process used in [[computer]]s that immediately writes to [[disk storage|disk]] any data queued for writing in volatile memory. Data is often held in this way for efficiency's sake, since writing to disk is a much slower process than writing to [[random access memory|RAM]]. Disk synchronization is needed when the computer is going to be shut down, or occasionally if a particularly important bit of data has just been written.
In [[Unix]]-like systems, a disk synchronization may be requested by any user with the '''sync''' command.
==See also==
{{compu-sci-stub}}▼
* [[mmap]], a POSIX-compliant Unix system call that maps files or devices into memory
* [[msync]], a POSIX-compliant Unix system call that forcefully flush memory to disk and synchronize
==References==
{{Reflist}}
{{DEFAULTSORT:Memory-Disk Synchronization}}
[[Category:Computer memory]]
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